IDF
IDF stands for:
- Identity verification , verification of the personal details of a natural person
- Intel Developer Forum , developer conference of the company Intel
- Invention Disclosure Form , document for preparing a patent application
- Intermediate Data Format , industry standard for transferring circuit board data to other CAD design programs
- Intermediate Distribution Frame , distributor for the wiring of devices
- International Diabetes Federation , organization for the research and treatment of diabetes
- International DOI Foundation , operator of the Digital Object Identifier for permanent identifiers of digital objects
- Institute for German as a Foreign Language Philology at the University of Heidelberg
- Indirect free kick , a continuation of the game in football
- Inverse Document Frequency , English for inverse document frequency , a calculate dimension in electronic data search and retrieval
- Iceland Defense Force , US military unit in Iceland
- Irish Defense Forces , English for Óglaigh na hÉireann , Irish armed forces
- Israel Defense Forces , English for Israel Defense Forces
- Indigenous Defense Fighter , fighter-bomber of the Taiwanese Air Force
- Île-de-France (ISO-3166-2: FR code), French region, Paris capital region
IdF stands for:
- Fire Brigade Institute, several institutes
i. d. F. or idF stands for:
- in the version , with laws
